Automatic sander.



No. 886,910. PATENTED MAY 5, 1908. H. M. WILLIAMS & B. ISAAGS.

AUTOMATIC SANDER. APPLICATION FILED JAN. 11, 1908..

2 SHEETS-SHEET 1.

No. 886,910. PATENTED MAY 5, 1908.

' H. M. WILLIAMS & B. ISAAOS.

AUTOMATIC SANDER.

APPLIGATIONTILED JAN.11, 1908.

2 SHEETS-SHEET 2.

W2 :11 use HEXRY .\I. WILLIAMS AND ELEAZEH ISAA'CS, ()l" PITTSBURG, PENNSYLVANIA.

AUTOMATIC SANDER.

Application filed January 11, 1908. Serial No. 410.376.

To all whom it may concern:

Be it known that we, Hnxnr M. \YiLLiAiis and ELEAZER ISAACS, citizens of the United States of America, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Automatic Sanders, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to an automatic sanding device, particularly designed for locomotives.

The primary object of our invention is to provide a novel device for locomotives by -which sand will be automatically forced from the sand dome of the locomotive upon the rails over which the locomotive travels.

Another object of this invention is to provide an automatic sanding device that will deliver sand to the rails of a track when the wheels of a locomotive are skidding.

Our invention aims to provide a simple and inexpensive sanding device that can be used in connection with various types of locomotives, the device being located in an accessible position and of sucha construction as to insure a positive operation when actuated. To this end, we deptnd upon-the skidding of locomotive wheels for actuating our device, it being a Well known fact that sand is used upon such occasions, when the wheels of a locomotive skid due to a heavy load, or to the presence of ice and frost upon" the rails of a track.

Our invention will be presently described in detail, and then specifically pointed out in the a pended claims.

' Re erring to the drawings forming a part of this specification, Figure 1 is a diagrammatic view of a locomotive equi ped with our device, Fig. 2 is an enlarger diagram matic elevation of the device illustrating a portion of a locomotive'in dotted lines, Fig. 3 is a longitudinal sectional view of the device partly in elevation, showing the mechanism in an inactive position, Fig. 4 is a pers ective view of a cylinder or dash pot guide, 1g. 5 is a cross sectional view of a movable cylinder or dash pot, Fig. 6 is a longitudinal sectional view of our device, illustrating the mechan ism in an activeosition, Fig. .7 is a vertical sectional view o ;a fixed interlocking member constituting a partof the mechanism, Fig. 8 is a similar view of another interlock- Specification of Letters Patent.

Patented May 5, 1908.

anism, and Fig. 9 is a plan of our device.

ing member constituting a part of the niech- In the accompanying drawings, 1 desig q: nates a locomotive, 2 the side frames thereof,'-

3 the axle of the forward drive wheelsv 5.1%

the rear axle of the pilot wheels-6, and 7a tread of the forward drive wheels 4.

Our device is located transversely of the locomotive 1 in front of the forward drive wheels 4, and upon a plate 9 suitably secured to the side frames 2. This late is provided with hangers 10 and 11, the h a bracket 12, the object of which will presently appear. In the'hangers 10 and 11 is journaled a shaft 13, and upon said shaft is fixed by a key 14 an interlocking clutch-member 15, this member cooperating with a movable interlocking clutch-member .16, slidably mounted upon the shaft 13. These members conform to disks haviii their periphery rovided with teeth 17, yv ereby said mem ers an'ger'll having will serve functionally as sprocket wheels in ed to confront and frictionally engage the lugs 21 of the member 15, when our device is in an active position, and when in an inactive position, the lugs 22 of the member 16 are the ugs 21 of the member 15.

adapted to loosely fit in the spaces between V The member 16 carries a sleeve 24, surrounding the shaft 13." This sleeve is pro-, vided 'with collars 25 and loosely engaging said collars is the yoke end 26 of a lever 27,

said lever beingfulcrumed in the bracket 12.

A coil spring 28 is interposed between the collar end of the sleeve 24. and the hanger 11,

this spring encircling the shaft 13, and nor mally holding the member 16 in engagement with'the member 15.

The lever 27 extends upwardly through a slot 29 provided therefor in the plate 9. i

This lever is loosely connected as at 30, to the piston rod 31 of,..a piston 32, operating in the cylinder or dash pct 33. The cylinder -or dash pot 33 is slidably mountedin a guide nlate 35 fixed upon the plate 9, and is loosely supply of air under connected by an eirtension 36 to a tilting head 37, said head being arranged between .guides 38 and 39, the former being carried by tlie guide plate 35, while the latter is fixed upon the ate 9.

Secured to the side frame 2 of the locomotive beneath the guides 38 and 39 is a valve casing 40, this valve casing having a valve seat 41 formed-therein, an air inlet port 42 and an air exhaust port 43. The port 42 is adapted to be connected to a suitable ressure, this supply bein carried-by the ocomotive and commo y nsed in connection with air brakes.

The air exhaust port 43 is connected by a pipe 44 to the sand dome 7, the pipe 44 extending into said dome in close proximity to the end of the discharge pipe 8. v

In the valve casing is mounted a valve having a stem 46, extendingupwardly through-a stufling box 47, carried by the the sprocket wheels 20 and 21 of such sizerelative to the driving wheels 4 and the ilot his valve casing 40,. and-through an opening 48 provided therefor in the plate 9. The valve stem 46 is adaptedto engage the under side of the tilting head 37 The normal or inactive'position of our de vice is illustrated in Fig. 3 of the'drawings, where it will be observed that the members 15 and 16 are interlocked, and when in such wheel 6 that the disks 1.5 and '16 wi be driven at the same rate of speed'when all the locomotive wheels are revolving and some are not skidding. The lugs 21 and 22 confront one another and are maintained in this position. by the coil spring 28, arranged between the member 16 and the'han er 11.

The outward movemento the member 16 actuates the lever '27, and causes saidlever to immediately move the cylinder or dash-' pct 33 forward, or-to the left in Fig. 3. Instead of connecting the lever 27 directly to the tilting head 37, we interpose the cylinder or dash-pot to retard" the spasmodic movement that would be imparted to the tilting head 37 by the lever 27. The ports 34' of the cylinder or dash pot are made of such a size as to allow the air within the cylinder or dash pot 33 to cushion the movement of the] revent a sudden or erking;- movement of t 1e cylinder or dash pot when lever 27, and

moving the tilting head 37 eedeio Immediately upon the'wheels 4 assuming their normal rotation, the lugs 22 of the member 16 are returned to their normal positionbetween the lugs 21 of the. member 15, but

upon the wheels 4 again skidding, the same operation takes place, and at this time the cylinder or dash pot 33 is moved to the right, allowing the tilting head 37 to assume its normal position and the valvev 45 to close. Assuming'that the wheels 4 again skid, the dash-pot or cylinder 33 is moved further to theright, and the tilting head 37 tilted'in the opposite direction from the first operation. It will thus be observed that the dash pot or cylinder 33 has three positions, this being permissible by the guide plate 35 and the arrangement of the ports 34, these ports through the medium of the cylinder and the.

piston 32 cushioning the lever 27 however moved.

The pressure of air in the' valve casing 40 will normally hold the valve 45 in a closed position, and the valve is then opened by the wheels 4 skidding; the normal operation of the locomotive maintaining the members-in an interlocked position, whereby they will rotate in unison.

It is thought that the construction endoperation of our automatic sanding device will be apparent from the foregoing description, and we reserve the right to make such structural changes as are permissible by the ap pended claims.

Having now described our invention what we claim as new, is I 1. In an automatic sanding device, the combination with a locomotive, the sand dome and axles thereof, and a discharge pipe leading from said sand dome, of a plate carried by said locomotive, a shaft revolubly supported by said plate, a toothed member mounted-upon said shaft, and adapted to be driven'by one of said axles, atoothed mem ber adjustably mounted upon-said shaft. and adapted to be drivenby the other of said axles, lugs carried by the confronting faces of said members and adapted to interlock, a fulcrumed lever actuated bysaid adjustable member, a tiltinghead arranged upon said plate and actuated by virtue of said lever, a valve casing located beneath said plate, a normally closed valve mounted in said casing and adapted to be opened bv said tilting head, a pipe communicating "with said casing and'with said sand dome, means mounteduponsaid'piate for retardmgthe movementofsaid lever, and means for normally holding said ad ustable member in engagement with the other member.

2. In a sanding device, the combination with a locomotive, the sand dome and axles thereof, and an air supply pipe communicating with said dome, of a plate carried by said locomotive, a shaft revolubly supported by said plate, a toothed member fixed upon said shaft and adapted to be driven by one of said axles, a toothed member adj ustably mounted upon said shaft and adapted to be driven by the other of said axles, lugs carried by the confronting faces of said toothed members and adapted to interlock, a lever actuated by said adjustable member, a tilting head actuated by said lever, a valve casing ar ranged beneath said plate and connecting" with said supply of air, a valve arranged within said valve casing, and actuated by said tilting head, a pipe connecting said valve casing with' said sand dome, and means to retard the movement of said lever.

3. The combination with a locomotive, the axles thereof, a sand dome having a suitable discharge pipe, and an air supply pipe communicating with said dome, of an automatic sanding device carried by said locomotive, said device comprisin a plate, a shaft revolubly supported by said plate, a toothed member fixed upon said shaft and adapted to be revolved by one of said axles, a toothed member adjustably mounted upon said shaft and adapted to be revolved by the other of said axles, lugs carried by the confronting faces of said members and adapted to interlock, a lever actuated by said adjustable member, a tilting head actuated bysaid lever, a valve casing in communication with said supply of air, a pipe connecting said valve casing with said sand dome, a valve located in said valve casing and actuated by said tilting head for controlling the admission of air into said sand dome, means located upon. said plate for retarding the movement of said lever, and means arranged upon said shaft for normally holding said adjustable member in engagement with said fixed member.

4. The combination with a locomotive, the axles thereof. a sand dome having a suitable discharge pipe, and an air supply pipe communicating with said dome, of an automatic sanding device carried by said locomotive, said devilze comprising a plate, a shaft revolubly su ported by said plate, a toothed member fixed upon said shaft and adapted to be revolved by one of said axles, a toothed member adjustably mounted upon said shaft and adapted to be revolved by the other of said axles, lugs carried by the confronting faces of said members and adapted to interlock, a lever actuated by said adjustable member, a tilting head actuated bysaid lever, a valve casing in communication with said supply of "air, a pipe connecting said valve casing with said sand dome, a valve located .in said valve casing and "actuated by "said revoluble shaft, a member fixed upon said shaft and adapted to be driven by one of said axles, a member adjustably mounted upon said'shaft and adaptedto be driven by the other of said axles, and adapted to interlock with said fixed member, a lever actuated by said adjustable member, a valve casing in communication withsaid sand dome, a valve located in said casing for controlling the admission of air to said sand dome, means ctuated by said lever to open said valv and means for preventing a spasmodic movement of the first mentioned means.

6. The combination with a locomotive, the axles thereof, a sand dome having a suitable discharge ipe, and a pipe communicating with said ome for supplying air under pressure thereto, of a sandmg device carried by said locomotive, said device comprising a revoluble shaft, a member fixed upon said shaft and ada ted to be driven by one of said axles, a mem er adjustably mounted upon said shaft and adapted to be driven by the other of said axles, and adapted to interlock with said fixed member, a lever actuated by said adjustable member, a valve casing in. communication with said sand dome,.and a valve located in said casing for controlling the admission of air to said sand dome.

7. The combination with a locomotive, the axles thereof, a sand dome having a suitable discharge pipe, and a pipe communicating with said dome for supplying air under ressure thereto, of a sanding device carried y said locomotive, said device comprising interlocking members adapted to be separately driven by said axles, a lever actuated by one of said members, a valve casing connecting with said supply of air and with said sand dome, a valve arranged in said casing and adapted to be opened by said lever, means for retarding the movement of said lever, and means for normally holding said membersinterlocked.

8. The combination with a locomotive, the axles thereof, a sand dome having a suitable discharge ipe, and a pipe communicating with said ome for supplying air under pressure thereto, of a sanding device carried by said locomotive, said device comprising interlocking members adapted to be separately driven by said axles, a lever actuated by one of said members, a-valve casin connecting with said supply of air and. wit said sand dome, a valve ar anged in said casing and adapted to be opened by said lever, and means for retarding the movement of said 1 lever.

9. The combination with a locomotive, the axles thereof, a sand dome having a suitable discharge pipe, and a pipe communicating with said dome for supplying air under pressure thereto, of an automatic sanding device carried by said locomotive, said device comprising interlocking revoluble members adapted to be separately driven by said axles,

a valve casing connecting with said supply of air and with said sand dome, and a valve, located in said casing and actuated by one of said members for admitting a supply of air to 15 said dome. I

In testimony whereof we afiix our signatures in the presence of two witnesses.v

HENRY M. WILLIAMS. ELEAZER ISAACS.

Witnesses:

MAX H. SROLOVITZ, C. V. BRooKs. 

